On Mar 20, 2012, at 13:15 , Janina Sajka wrote:
> David Singer writes:
>>
>> On Mar 19, 2012, at 23:43 , Leif Halvard Silli wrote:
>>
>>>
>>> For the video element, then I am open to consider the idea of that
>>> @longdesc could point to a poster description: It makes some sense, as
>>> the poster is an image. But I have so far not included that in the CP.
>>
>> A long description of a video should (if it were to exist at all) describe the *video*. The poster is merely a transient representation of the video before it plays. If someone needs a non-timed, readable, rendition of the content of the video, they don't need a long description of the poster.
>>
>> Scenario: a how-to video on how to bid on an online auction site. The poster image shows a bidding card (as used in live auctions) and a five dollar bill. The user asks for a long description of the video. How useful is it to be told "The background is plain white. The number 242 is shown on a white card, on a stick. The card is slightly crumpled at the edges; the numerals are in a black sans-serif font, and occupy the whole card. Below the card is a single five dollar bill. The bill is shown with the image of Lincoln face up; it appears to be rather old, with the colors no longer sharp, and visible crumpling. There is a small tear in the top right-hand corner. The bill overlaps the bottom end of the stick, which is, as a result, invisible."
>>
>> ????
>
>
> It's not just about utility. There are descriptions that might attempt
> to capture artistic, or historic, or cultural aspects. These are
> increasingly useful in the realm of audio and video.
>
>
> So, David, specifically from your example, I found I rather appreciated
> your description. I would hate to think it would be globally denied for
> lack of a simple markup mechanism.
>
But you are missing my point. The accessibility-needing user needed a description of the VIDEO, they wanted to learn how to bid! They got something that was maybe artistic but useless to them.
David Singer
Multimedia and Software Standards, Apple Inc.